Electric leak-alarm



(No Model.)

0. G. KAHNE, A. A. ADKINS, W. S. PEIRGE. J. E. MARTIN & G. F. KAHNE.ELECTRIC LEAK ALARM.

No. 528,881. I Patented Nov. 6, 1894.

IIITTEET- OM88 (8.62M fy 34 fi af/ w UNITED STATES PATENT OFF CE,

CHARLES C. KAHNE, ANDREW A. ADKINS, WINFIELD S. PEIRCE, JOHN E. MARTIN,AND GEORGE F. KAHNE, OF ASHLAND, KENTUCKY.

ELECTRIC LEAK-ALARM.

SPECIFICATION forming part of Letters Patent No. 528,881, dated November6, 1894.

Application filed July 6,1894:- Serial No. 616,772. (No model.)

To all whom it may concern.-

Be it known that we, CHARLES C. KAHNE, ANDREW A. ADKINS, WINFIELD SooTTPEIRCE, JOHN E. MARTIN, and GEORGE E. KAHNE, all citizens of the UnitedStates, and residents of Ashland, Boyd county, Kentucky, have inventedcertain new and useful Improvements in Electric Leak Alarms, of whichthe following is a specification.

Our invention relates to a float-controlled circuit closer for anelectric alarm, the alarm to be located in any convenient place, and thecircuit closer to be located in the hold of a vessel or other placewhere it may be desired to have the presence of an abnormal amount ofwater sound an alarm.

Our invention has for its object to construct a simple device of durablemechanism, which cannot easily get out of working order, and which willtherefore be reliable in use and cheap in structure, and our inventionconsists in certain novel features which will be particularly pointedout in the claims, being first fully described with reference to theaccompanying drawing which represents a perspective view of thefloat-controlled circuit closer, partly broken away, and the electricalarm circuit in diagram.

The circuit closer consists of a bottomless box 1, in which is placed afloat 2, having a socket 3 by which it is confined on a vertical guidea, projecting upward from a support 5.

6 is a contact post projecting vertically from the float 2, and madevertically extensible in a socket 6, where it is held to any height by aset screw 6 The post 6 is connected by flexible conductor 7 with acontact post 8 which is connected to one terminal of the electric alarmcircuit 9, 10, 11, 12.

13 represents a hinged cover to the box 1, which may be opened to giveaccess to the interior of the box, and kept under lock and key toprevent the mechanism within the box being tampered with. On its underside, the

cover 13 carries a contact plate 14 against which the post 6 impingeswhen the float rises. The contact plate 14: has electrical connectionwith binding post 15 on the box-cover 13, and this binding post isconnected with the terminal of circuit 9, 10, 11, and 12, opposite tothe binding post 8.

As will be observed, 10, represents a source of electricity and 11, anelectric bell connected thereto, and these are so connected with thebinding posts 8 and 15, and connections between said binding posts andthe contacts 6 and 14, are such that when said contacts are broughttogether, the circuit is completed,and an alarm sounded by the bell.

Such being the construction ofthe parts it is only necessary to have thealarm located in a place convenient to be heard, and the circuit closerplaced on the level of the place where the accumulation of water isanticipated. The upwardly projecting post 6 is then adjusted in lengthso that it will be brought into contact with the plate when the waterrises to a certain extent in the box.

Having thus described our invention, the following is what we claim asnew therein and desire to secure by'Letters Patent:

1. In an electric leak-alarm, the combination of the box 1, having amovable cover 13, thefloat 2 Working in said box, the contact plate 14attached to said cover above the float, and the upwardly projectingcontact post 6, carried by the float and adapted to be raised againstthe plate 14; said plate and contact post being connected with therespective terminals of an alarm circuit, substantially as set forth.

2. In an electric leak-alarm, the combination of the vertically movablefloat 2, the fixed contact plate 14 above said float, and the verticallyadjustable post 6 inserted in a pocket 6 on the float, and adapted to beraised into contact with the contact plate 14:; said contact post andplate being electrically contric alarm circuit 9, 10, 11, 12, having theterminals connected with the binding posts 8 and 15; substantially asset forth.'

CHARLES C. KAHNE. ANDREW A. ADKINS. WINFIELD S. PEIROE. JOHN E. MARTIN.GEORGE F. KAHNE.

lVitnesses:

A. H. WATKINS, W. R. MARSH.

